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Reaction Kinetics and Catalysis Letters

, Volume 29, Issue 1, pp 297–305 | Cite as

Ruthenium(VI) catalyzed oxidation of sodium salts of lactic, tartaric and glycolic acid by alkaline hexacyanoferrate(III)

  • P. Kumar
  • K. C. Gupta
  • K. Vehari
Article

Abstract

The kinetics of ruthenium(VI) catalyzed oxidation of sodium salts of lactic, tartaric and glycolic acid by hexacyanoferrate(III) in aqueous alkaline medium have been studied at constant ionic strength. The reaction shows first order dependence on ruthenium(VI) and zero order on hexacyanoferrate(III). The rate of reaction increases with increasing substrate concentration and shows Michaelis-Menten type behavior. The rate of reaction decreases with increase in hydroxide ion concentration. Oxidation proceeds via formation of a complex between substrate and ruthenium(VI). A probable mechanism is suggested.

Keywords

Ionic Strength Ruthenium Substrate Concentration Alkaline Medium Sodium Salt 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract

Исследована кинетика катализированного рутением(VI) окисления натриевых солей молочной, винной и гликолевой кислот гексацианоферратом(III) в водных щелочных средах при постоянной ионной силе. Реакция имеет первый порядок по рутению(VI) и нулевой порядок по гексацианоферрату(III). Скорость реакции увеличивается с увеличением концентрации субстрата и обнаруживает поведение типа Михаэлиса-Ментена. Скорость реакции уменьшается с увеличением концентрации гидроксидного иона. Окисление протекает через образование комплекса между субстратом и рутением(VI). Предлагается вероятный механизм.

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Copyright information

© Akadémiai Kiadó 1985

Authors and Affiliations

  • P. Kumar
    • 1
  • K. C. Gupta
    • 1
  • K. Vehari
    • 1
  1. 1.Department of ChemistryUniversity of AllahabadAllahabadIndia

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